Add fchownat(2).
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f843e15666
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@ -141,6 +141,7 @@ exit.o \
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faccessat.o \
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faccessat.o \
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fchdir.o \
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fchdir.o \
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fchmod.o \
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fchmod.o \
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fchownat.o \
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fcloseall.o \
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fcloseall.o \
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fcntl.o \
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fcntl.o \
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fddir-sortix.o \
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fddir-sortix.o \
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@ -0,0 +1,36 @@
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/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2012.
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This file is part of the Sortix C Library.
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The Sortix C Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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The Sortix C Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
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fchownat.cpp
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Changes the owner and group of a file.
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*******************************************************************************/
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#include <sys/types.h>
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#include <sys/syscall.h>
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#include <fcntl.h>
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#include <unistd.h>
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DEFN_SYSCALL5(int, sys_fchownat, SYSCALL_FCHOWNAT, int, const char*, uid_t, gid_t, int);
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extern "C" int fchownat(int dirfd, const char* path, uid_t owner, gid_t group, int flags)
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{
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return sys_fchownat(dirfd, path, owner, group, flags);
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}
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@ -93,7 +93,6 @@ char* crypt(const char*, const char*);
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char* ctermid(char*);
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char* ctermid(char*);
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void encrypt(char [64], int);
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void encrypt(char [64], int);
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int fchown(int, uid_t, gid_t);
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int fchown(int, uid_t, gid_t);
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int fchownat(int, const char*, uid_t, gid_t, int);
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int fdatasync(int);
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int fdatasync(int);
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int fexecve(int, char* const [], char* const []);
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int fexecve(int, char* const [], char* const []);
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long fpathconf(int, int);
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long fpathconf(int, int);
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@ -161,6 +160,7 @@ int execvp(const char*, char* const []);
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pid_t fork(void);
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pid_t fork(void);
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int faccessat(int, const char*, int, int);
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int faccessat(int, const char*, int, int);
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int fchdir(int);
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int fchdir(int);
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int fchownat(int, const char*, uid_t, gid_t, int);
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int ftruncate(int, off_t);
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int ftruncate(int, off_t);
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char* getcwd(char*, size_t);
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char* getcwd(char*, size_t);
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char* get_current_dir_name(void);
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char* get_current_dir_name(void);
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@ -87,6 +87,7 @@
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#define SYSCALL_MKDIRAT 63
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#define SYSCALL_MKDIRAT 63
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#define SYSCALL_FCHDIR 64
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#define SYSCALL_FCHDIR 64
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#define SYSCALL_TRUNCATEAT 65
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#define SYSCALL_TRUNCATEAT 65
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#define SYSCALL_MAX_NUM 66 /* index of highest constant + 1 */
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#define SYSCALL_FCHOWNAT 66
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#define SYSCALL_MAX_NUM 67 /* index of highest constant + 1 */
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#endif
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#endif
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@ -351,14 +351,19 @@ static int sys_chdir(const char* path)
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return 0;
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return 0;
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}
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}
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static int sys_chown(const char* path, uid_t owner, gid_t group)
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// TODO: fchown(2)
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static int sys_fchownat(int dirfd, const char* path, uid_t owner, gid_t group, int flags)
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{
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{
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if ( flags )
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return errno = ENOTSUP, -1;
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char* pathcopy = GetStringFromUser(path);
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char* pathcopy = GetStringFromUser(path);
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if ( !pathcopy )
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if ( !pathcopy )
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return -1;
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return -1;
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ioctx_t ctx; SetupUserIOCtx(&ctx);
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ioctx_t ctx; SetupUserIOCtx(&ctx);
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const char* relpath = pathcopy;
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const char* relpath = pathcopy;
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Ref<Descriptor> from = PrepareLookup(&relpath);
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Ref<Descriptor> from = PrepareLookup(&relpath, dirfd);
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if ( !from ) { delete[] pathcopy; return -1; }
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Ref<Descriptor> desc = from->open(&ctx, relpath, O_WRONLY);
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Ref<Descriptor> desc = from->open(&ctx, relpath, O_WRONLY);
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from.Reset();
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from.Reset();
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delete[] pathcopy;
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delete[] pathcopy;
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@ -367,6 +372,11 @@ static int sys_chown(const char* path, uid_t owner, gid_t group)
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return desc->chown(&ctx, owner, group);
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return desc->chown(&ctx, owner, group);
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}
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}
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static int sys_chown(const char* path, uid_t owner, gid_t group)
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{
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return sys_fchownat(AT_FDCWD, path, owner, group, 0);
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}
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static int sys_chmod(const char* path, mode_t mode)
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static int sys_chmod(const char* path, mode_t mode)
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{
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{
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char* pathcopy = GetStringFromUser(path);
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char* pathcopy = GetStringFromUser(path);
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@ -461,6 +471,7 @@ void Init()
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Syscall::Register(SYSCALL_DUP2, (void*) sys_dup2);
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Syscall::Register(SYSCALL_DUP2, (void*) sys_dup2);
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Syscall::Register(SYSCALL_FACCESSAT, (void*) sys_faccessat);
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Syscall::Register(SYSCALL_FACCESSAT, (void*) sys_faccessat);
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Syscall::Register(SYSCALL_FCHDIR, (void*) sys_fchdir);
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Syscall::Register(SYSCALL_FCHDIR, (void*) sys_fchdir);
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Syscall::Register(SYSCALL_FCHOWNAT, (void*) sys_fchownat);
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Syscall::Register(SYSCALL_FCNTL, (void*) sys_fcntl);
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Syscall::Register(SYSCALL_FCNTL, (void*) sys_fcntl);
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Syscall::Register(SYSCALL_FSTATAT, (void*) sys_fstatat);
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Syscall::Register(SYSCALL_FSTATAT, (void*) sys_fstatat);
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Syscall::Register(SYSCALL_FSTAT, (void*) sys_fstat);
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Syscall::Register(SYSCALL_FSTAT, (void*) sys_fstat);
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